Blog for all those MAC speech users

We all know how important radio communications are and at a time before the internet and even digital communications, governments relied on RF communications that were susceptible to the suns solar storms, if you add that to the cold war nuclear tensions then we could all be living in holes now.

In September 1983, for example, sunlight reflecting off a patch of clouds fooled a Soviet missile-warning system into detecting the launch of five US intercontinental ballistic missiles that never were. A wary colonel in a bunker ignored the alarm onÂ a 50/50 hunch.

Two months later, US forces staged “Able Archer 83” â a massive nuclear-strike drill on the doorstep of the USSR. Soviet commanders panicked at the show of force and nearly bathed America in thermonuclear energy. Once again, an act of human doubtÂ saved the planet.

“The storm made its initial mark with a colossal solar radio burst causing radio interference … and near-simultaneous disruptions of dayside radio communication,” a group of atmospheric scientists and military weather service personnel wrote in a new study, published August 9 in the journalSpace Weather.

“Such an intense, never-before-observed solar radio burst was interpreted as jamming,” the study authors wrote. “Cold War military commanders viewed full scale jamming of surveillance sensors as a potential act of war.”

A ‘Great Storm’

Earth’s magnetic field protects life on the planet by corralling the sun’s high-energy particles toward the planet’s polar regions.

If the sun happens to launch a cloud of solar particles directly toward Earth during a violent outburst, called a coronal mass ejection, it can triggerÂ powerful geomagnetic storms.

This not only leads to beautiful auroras, but can also scramble wireless communications and disrupt radar systems.

The Air Weather Service (AWS) â a relatively new branch of the Air Force â had warned military leadership about the possibility of a solar storm, but US commanders believed the Soviet forces were jammingÂ NORADÂ systems designed to detect threatening planes and missiles.

As the Strategic Air Command warmed up the engines of bombers and taxied toward the runway, the decision to go airborne may have been kicked all the way up to the “highest levels of government,” possibly involving President Lyndon B. Johnson.

“Just in time, military space weather forecasters conveyed information about the solar storm’s potential to disrupt radar and radio communications,” according to aÂ press release from the American Geophysical Union. “The planes remained on the ground and the U.S. avoided a potential nuclear weapon exchange with the Soviet Union.”

“Had it not been for the fact that we had invested very early on in solar and geomagnetic storm observations and forecasting, the impact [of the storm] likely would have been much greater,” study leader and UCAR atmospheric scientist Delores Knipp said in the release.

After the near miss, the researchers say the military learned to listen to its space weather forecasters, improve its abilities to see another looming “Great Storm,” and avert the first and perhaps final global nuclear exchange.

Itâs a brave move by the olympic organisers, the London Olympic communications was run by Riedel and they did an excellent job, they have experience in this field, but the Brazilians are obviously set on using Teltronic and we all hope that they do just as good as a job.

Teltronic, part of the Sepura Group, has been chosen by the public security secretary of RÃ­o de Janeiro State in Brazil to supply communications for the Summer Olympics and Paralympics, informally known as Rio 2016.

The â¬10m contract will cover four venues (Barra da Tijuca, Copacabana, Deodoro and MaracanÃ£), two airports (Rio de Janeiro/GaleÃ£o – AntÃ´nio Carlos Jobim International and Santos Dumont) and several key transport routes in the Olympic area.

The agreement with Teltronic will see an extension to the traffic capabilities of the existing Teltronic network currently used by the Rio police, as well as the installation of further Nebula base stations to provide additional coverage for the state police and emergency services, and the Olympics organisation workforce.

The existing network was originally provided by Teltronic for the Pan American Games in 2007 and, after some upgrades, is now supporting over 100 dispatch operators and more than 18,000 radios. This new upgrade for the Olympics will feature two extra TETRA carriers for each site, to update the capacity of the existing network; base stations with up to 12 TETRA transceivers to support high traffic loads throughout the event; a CeCoCo Control Centre, to accommodate a further 50 dispatch operators; an additional 6,000 terminals featuring Teltronic’s Synchronous Data Manager application to pare down the GPS refresh time in AVL applications; and 24/7 maintenance and operational support during the Games.

“This win builds on our long-term relationship with the Brazilian authorities and public safety agencies,” said Paulo Ferrao, the Sepura Group’s sales director for Brazil.

“We have a strong background in events of this scale, having supported communications for the FIFA World Cup 2014 and the Pan-American Games, both huge events in the sporting calendar of Brazil and, indeed, the world. We are delighted that Rio de Janeiro’s public safety agencies have, once again, placed their trust in us.”

Superintendent of critical communications at the Security Secretariat of the State, Colonel Alexandre Corval, commented: “We are extremely happy to have chosen Teltronic.

“The company has been a trustworthy partner to our public safety agencies for over ten years. Once again, they have exceeded our expectations in terms of technical development, quality of the deployment and, above all, their dedication to customer service: throughout the project, they have paid close attention to our technical and operational requirements.

“We are confident that this extension to the existing Teltronic TETRA system will optimise our mission-critical communications, enhancing the security of both visitors and employees throughout Rio 2016.”

It is understood that ear moulded plugs are far more comfortable and effective than the mushroom plugs, but which ones are the best? The Custom fit or generic fit. This article runs over the positives and negatives of that question and comes to a conclusion, if your debating to get some moulded ear plugs or some from the shelf, you will want to read this first.

Over the past 20 years,Â In Ear MonitorsÂ (orÂ IEMs) have become a near-necessity for live performance.

In years prior, engineers would inevitably have to crank up a venueâs stage monitors loud enough for the musicians to hear themselves over the audience, over the sound coming from the stage, and over the main mix.

This would often lead to an arms race of ever-increasing stage volume, potentially causing feedback issues and compromises in clarity and quality for the live mix.

Custom in-ear monitors from JH Audio, one of the first commercial brands to make a name for itself in the IEM market.

With the advent of in-ear monitors, all this began to change.Â In the mid-1980s,Â EtymoticÂ developed the first-ever insert-styleÂ earphones, and soon after, a designer namedÂ Marty GarciaÂ began making one-off custom in-ears for rock stars like Todd Rundgren.

By 1995, Jerry Harvey, founder ofÂ Ultimate EarsandÂ JH Audio,Â brought some ofÂ the first commercially-available dual-driver IEMs to market. All of a sudden,Â everyday musicians had an option that allowed usÂ to save our hearing, get better monitor mixes, and dramatically reduce the chances of feedback onstage.

Today, IEMs are increasingly being considered useful tools for the studio as well. Their ability to prevent sound leakage can be of tremendous value in helping to control click and instrument bleed, and in saving musiciansâ hearing by allowing them to monitor at lower levels.

Some musicians and engineers, such as drummer Rich Pagano ofÂ The Fab Faux, will use IEMs to quickly check for phase when micâing up a drum kit, while others turn to IEMs as a kind of audio microscope, using them to help check for and remove extraneous low-level noise.

Any modern musician would be wise to consider adding in-ear monitors to their toolkit. But is it worth it to dish out the extra money on custom fit IEMs, instead of saving some money with the generic fit ones?

In testing a variety of in-ear monitors from brands like Westone, Ultimate Ears, Future Sonics, and even Skullcandy (that last of which is not recommended for professional use), I have found that there are cases in which generic fit earphones may work better than their custom counterparts. Making the right decision for your needs comes down to considering the following four factors:

1)Â Cost

Ultimate Ears custom fit in-ear monitors.

Custom fit IEMs tend to cost more than generic fit ones, as it takes more time and effort for the manufacturer to craft a product designed specifically for the unique anatomy of your ear.

Getting custom IEMs made also requires that you go to an audiologist to make a mold of your ear canal that the IEM company can then use to make your monitors fit as well as possible.

Take note of both of these costs, which can range from $100-$200 or more for a fitting from an audiologist, and $299-$1499 or more for the custom monitors to be made.

In my experience, custom fit IEMs can feel a little tight in the ear canal compared to generics, especially at first. Hearing so little acoustic feedback from your performance can also take some getting used to, and the tight seal of custom fit in-ears can feel particularly awkward when signing.

Because of this, my looser-fittingÂ Westone 3Â generic IEMs actually feel more comfortable to me on vocal duties, so I often find myself using them over my custom fitÂ Future SonicsÂ when I step up to the mic.

Though the tight fit of custom IEMs and lack of acoustic feedback from your performance can be a challenge, itâs worth noting that generic foam-tip IEMs also provide their own tradeoffs: The looser fit of generics can sometimes create a bit of a tingling or âticklingâ feeling in your ear when playing at higher volumes, so it may be useful to have a pair of each and go with what feels best depending on the date and venue.

Silicone-based Encore Studio custom IEMs from ACS.

Another option here is the custom fit brandACS, which makes its IEMs out of soft silicone shells.

This softer silicone-based design is meant to offer both better comfort and a tighter fit than the hard acrylic shells used by brands like Westone and Ultimate Ears.

Though these silicone monitors sell for a premium price of $400-$1,200 and up, they may help bridge the gap between the tight seal of custom acrylics and the looser and easier fit of foam-tipped generic IEMs.

3)Â Hearing Protection

In addition to cutting down on sound leakage to help improve sound quality and reduce feedback, another primary benefit of IEMs is that they can offer considerable hearing protection by helping to block out exterior noise, allowing you to monitor at lower levels.

Some of the best custom fit brands likeÂ JH AudioÂ andÂ Ultimate EarsÂ offer NRR ratings of 26dB in reduction, and some of the better generic brands advertise comparable results as well. (Though your results with generics may vary depending on the fit and seal in your ear.)

In the long term, reducing the levels youâre regularly exposed toâeven by a few extra decibelsâcould mean the difference between a long and illustrious career as a âgolden-earedâ audio engineer and potentialtinnitusÂ and irreversible hearing loss.

Also worth checking out is theÂ REV33Â system, which can be added on to yourÂ your in-ear-monitoring system to help reduce distortion and ear strain. Many live musicians, includingÂ Phil XÂ and Steve Salas swear by the system. According to the company:

âAll in-ear monitors and headphones generate damaging, unwanted noise and distortion that forces the ear to shut down and compress for protection. The REV33 reduces the symptoms of tinnitus, ear-ringing, ear-fatigue, buzzing and dampened hearing by preventing in-ear monitors and headphones from producing this unwanted noise and distortion.â

4)Â WaitingÂ and TimeÂ Considerations

After getting my first pair of IEMâs made, I found that the right ear monitor turned out well, but I was not getting a proper seal in the left ear at first. This made the monitors essentially useless for my live sound needs at the time, and so I had to send them back for some tweaking.

When I got them back a couple of weeks later, the seal still wasnât great, so I had to send them back once again for further modification, and visit my audiologist a second time to take another impression of my ear canal to send in.

Getting the perfect fit turned out to be quite a time-consuming process (as well as an expensive one) so unless youâre on the hunt for a long-term solution with as much acoustic isolation as humanly possible, you might satisfice with generic IEMs, or keep some around as an alternate option.

In that case, I would recommend the generic in-ears from Ultimate Ears, Shure, or Westone.

Ultimate Earsâ generic fit UE900 model sports 4 drivers for $400.

TheÂ Ultimate Ears UE900âs are a great sounding 4-driver IEM that only costs $399, while the $99Â Shure SE215Â single-driver IEMs advertise an astonishing 37dB of noise reduction (more than most custom IEMs) at a great price.

My own triple-driver Westone 3âs (since replaced by theÂ W30 model) are the most comfortable in ear monitors I own right now, and they isolate a lot more noise than most thanks to their foam-tip construction.

Compared to custom in-ears, any of these model can potentially save you time and money, or work as a welcome supplement for those times when the tight fit of custom in-ears feels irksome.

I hope my experiences here help you make the right decision when you go to buy your own IEMs. In short, I found that less-expensive generic foam-tipped IEMs worked better for me in many situations, and the savings enabled me to spend my money on better drivers with a fuller sound.

If youâve used IEMâs in the past, let us know in the comments below whether you prefer custom fits or generic fit ones, and why.

We all know that Motorola produce the best two way radios and claim to be best in class, that can be backed up, by just using their products. This article (original can be found here) focuses on radios for the fire service, but as we all know they are well adapted for the police, ambulance and search and rescue teams.

Motorola Solutions (NYSE: MSI) continues its legacy of designing best-in-class digital radio solutions for firefighters and other professionals who face extreme conditions with the introduction of the APX 8000XE two-way radio and APX XE500 RSM. The newest entries into Motorola Solutionsâ award-winning APX portfolio of Project 25Â (P25) digital radios have been developed using the companyâs well-established practice of hands-on research with firefighters and other first responders who need the most reliable mission-critical communications to do their jobs efficiently, effectively and safely every day.

The APX 8000XE features all-band functionality and is a rugged P25 two-way radio that can be used in either analog or digital mode across 700/800MHz, VHF and UHF bands. Time is of the essence for firefighters and they can be ready in moments by programming the radio remotely via Wi-Fi and radio management software to operate securely on different radio networks, allowing them to quickly help neighboring counties during large-scale emergencies.

Motorola Solutions works closely with firefighters and other radio users to find out exactly what they need and the APX 8000XE is the latest example of that thinking. It features the trusted ergonomics of the APX XE radio series, designed for easy operation in harsh conditions. The right-sized radio has a large top display, exaggerated controls for gloved hands and a dedicated push-to-talk button. It also provides best-in-class audio with a 1-watt speaker, three built-in microphones and automatic noise suppression for clarity in the loudest of environments.

âThe APX 8000XE is an all-band rugged and submersible portable radio made for firefighters,â said Lieutenant David Hudik, Elgin, Illinois Fire Department. âWith Wi-Fi access, we can reprogram the APX 8000XE on the fly when we are providing mutual aid assistance out-of-state.â

Most firefighters use a remote speaker microphone with their radios and the APX XE500 RSM is designed specifically for demanding environments, whether combating a fire or providing medical services at the scene of an accident.

– With five strategically placed microphones and automatic noise suppression, the APX XE500Â provides clear communications when worn on either shoulder, center chest, or over the shoulder

– It can be submersed in 2 meters of water for up to 4 hours

– It withstands heat conditions of up to 500Â°F (260Â°C) for up to 5 minutes

– A channel knob automatically controls the channels of the userâs portable APX radio

âWith the APX XE500 RSM, I can completely control my APX radio without having to hunt under my bunker coat for it,â said Lieutenant David Hudik, Elgin Fire Department. âWith improved water porting, you can carry the APX XE500 upright or upside down for fast water drainage while maintaining clear voice communications.â

âCustomer input is essential to our design and the Elgin Fire Department was right at our side as we tested the capabilities of the APX 8000XE and APX XE500 RSM,â said Claudia Rodriguez, vice president, Devices Product Management, Motorola Solutions. âThe latest XE radio means firefighters will be able to talk with other first responders at the scene and across municipalities and regions. The new rugged RSM means they can communicate clearly in the loudest fireground environments, including blaring horns and wailing sirens.â

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Many business and factories are very well aware of their legal obligations when it comes to occupational deafness, and here in the UK we have the Control of Noise at Work Regulations 2006. Many of the headsets that are listed on Headsetonline.co.uk are designed exactly for these types of industries, with their experience they are a leader in radio headsets and hearing protection equipment. But as the article below explains the protection has to personalised to everyone, so as to make sure that the individual is catered for and protected adequately. The original source of this article can be found here.

Hearing loss is preventable. Why, then, is it still so common? NIOSH notes that occupational hearing loss is one of the most common work-related illnesses in the United States. And according to OSHA, approximately 30 million people in the United States are exposed to hazardous noise on the job.

âNoise-induced hearing loss is generally a gradual and painless process, so many workers donât consider it a hazard â¦ until itâs too late,â said Katie Mielcarek, marketing manager for Cleveland-based Gateway Safety Inc. Mielcarek went on to say that workers donât wear hearing protection for many reasons, including discomfort, poor fit and problems with compliance monitoring and trouble inserting earplugs.

âElectronic muffs contain the latest technology designed to protect against environments with impulse noises,â said Eric Moreno, market manager for Cranberry Township, PA-based MSA. âThe technology amplifies weak sounds while compressing dangerous noises to a predetermined safe level of 82 dB or lower.â Moreno said this allows face-to-face communication and lets workers hear important sounds, such as warning signals.

Gary Klee, product manager for above-the-neck products at Latham, NY-based Protective Industrial Products Inc., pointed to a âlevel-dependent systemâ available with electronic earmuffs. This system has microphones in both ear cups to help limit sounds reproduced through the internal speakers to a safe level, which âallows communication with others while remaining protected against impulsive or hazardous noise,â Klee said.

Advice

Ricardo Allamelou, COO for Miami Lakes, FL-based Cotral Lab Inc., said providing every worker with the exact same type of hearing protection doesnât make sense. âThe protection has to be personalized since overprotection is as dangerous as no protection at all,â he said.

According to Moreno, âOverprotecting can actually increase the danger to a personâs life because this can hinder their ability to hear relevant noises such as warning signals, moving vehicles, other workers, etc.â To reduce the chance of overprotecting, Moreno recommends thoroughly understanding the level of noise in every area of the workplace to determine what level of protection each area needs.

Additionally, be sure your hearing protection is independently, third-party tested to verify noise reduction ratings, Mielcarek said. âThis helps communicate quality in an industry where many manufacturers simply mark their products with a standard or a rating, without the testing to back it up.â

A unique species of early cretaceous snake â unique in that it apparently had four functioning limbs â has been discovered in the BÃ¼rgermeister MÃ¼ller Museum in Solnhofen, Germany this month.

The discovery was made by Dr. David Martill of the University of Portsmouth, who was showing a group of students through the museumâs collection when he noticed the specimenâs remarkable attributes.

The snake, which measured about 15 centimetres from nose to tail, is thought to have been a carnivore (a fact borne out by the bones of smaller animals preserved in its stomach) and probably hunted via constriction, like many of todayâs snakes. Experts believe that it may even have used its limbs to aid in the process.

Built for burrowing (an activity which likely would not have included its limbs in any significant way), this new discovery lends credence to the scientists who argue for snake evolution occurring on land, as opposed to in the sea.

Fossil snakes with stunted hind limbs are known to palaeontologists â and even todayâs boas and pythons have a small pair of spurs where their hind limbs are thought to have once been. However, no snake, extinct or extant, has ever been discovered with four limbs.

However, some experts are not convinced. In our vibrant, ecologically diverse world, there are a great many species of legless lizards that are not true snakes. European slow worms, for example, are snake-like in aspect, but they are lizards, not snakes. Another example would be the Mexican Bipedidae family, which are serpentine in appearance, but which retain a pair of fully functioning forelimbs.

âIs it even a snake? I honestly donât think so,â said the University of Albertaâs Dr. Michael Caldwell, an expert in snake evolution, to National Geographic.comâs Ed Yong. According to Caldwell and a growing number of other critics, Tetrapodophis lacks certain distinctive features in the spine and the skull that would label it a snake. The fact that this is the only known specimen in the world and that the skull is only partially preserved will probably see the debate continue until such time as a complete specimen is unearthed.

But Dr. Martill is insistent that his discovery is a snake. Speaking to National Geographic, he pointed out the specimenâs backwards-pointing teeth, single row of belly scales, the connections between the vertebrae and the shortness of the animalâs tail after the hip â all of which suggest snake to the educated observer. Of course, many legless lizards also feature these traits, but none has all of them. This means that even if the animal has been mis-identified, it is still totally unique to science.

Even more mysterious are the origins of the fossil itself, which contains the rather distinctive characteristics indicative of the Crato formation in Brazil. Discounting for a second that this is quite possibly the earliest fossil snake known to have emerged from South America, question marks have been raised regarding how the specimen could have made it to Germany when the trade of such artefacts is illegal under Brazilian law.

Since 1942, it has been illegal for any unlicensed person to dig for fossils in Brazil without first gaining permission from the Brazilian National Department of Mineral Production (DNPM). Last year, a number of people were prosecuted (where they faced a maximum sentence of 20 years in prison) for the illegal export of Brazilian fossils to museums in Germany and Great Britain. Odds are that Brazilian authorities, as well as the scientific community in general, will be looking into the origins of such an important find with great interest.

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This is an interesting review of a study of how effective ear plugs are in the workplace. We take for granted that people working in loud factories wear protective hearing, but many of the clubs, pubs, concerts and festivals that have as equal levels of sound. As they say below, it isnât mandatory to wear ear plugs in such environments, which defies common sense and possibly causes more damage than we understand. Here you can find the original source of the review.

A review of the literature turned up only two high quality studies that looked at whether wearing earplugs to music venues will prevent hearing loss and tinnitus directly afterward.

Dr. Wilko Grolman and colleagues at University Medical Center Utrecht in The Netherlands searched for published studies containing the keywords âmusicâ and âearplugsâ and screened 228 resulting papers. All but four were not eligible for inclusion in the review and only two were highly relevant and did not have a highÂ riskÂ of bias, in the reviewersâ estimation.

Two studies simply examined people who chose on their own to wear or not wear earplugs, while two randomized controlled trials tested what happened when participants were assigned to wear earplugs or not.

Two studies reported on hearing loss and tinnitus while one only reported hearing loss.

The two best studies were different enough that the researchers couldnât combine their dataÂ and analyze the results, the reviewers wrote. Both included 29 concert attendees and performed audiometry before and after the concerts. In one study, participants were allowed to choose whether or not they wore earplugs, and only three chose to wear them.

âFrankly, with such a small comparator group between three subjects and the others, it would be hard to assess validity of plugs or not,â said Dr. Jennifer Derebery, president of the Los Angeles Society of Otolaryngology and lead author of the first study.

âWe had trained them all in proper insertion, and encouraged but not required wearing them,â Derebery told Reuters Health by email.

In the other study, 15 participants were assigned to the earplug group.

In general, wearing earplugs did reduce hearing loss directly after the concerts, but did not eliminate it completely, as reported online March 3 in JAMA Otolaryngology-Head and Neck Surgery.

âEar plugs are effective in preventing hearing loss when they are used both correctly and consistently,â said Colleen G. Le Prell, the Emilie and Phil Schepps Professor of Hearing Science at the University of Texas at Dallas, who was not involved in the review.

âAt younger ages, loud toys, firecrackers, loud video games, personal stereos or personal music players, lawnmowers or leaf blowers, sporting events or air shows, or other non-music events might be more likely noisy activities than music venue attendance,â Le Prell said. âA significant number of youth are also involved in target shooting activities, which children can get involved with through Boy Scouts or other organizations.â

For teens and young adults, repeat exposures to amplified music at clubs, concerts, festivals, or other related events may damage the inner ear and result in hearing loss, she said.

âMost concerts are both loud enough, and long enough, that they are likely to exceed the total daily exposure allowed by workplace safety regulations,â she said. âSound exposure also commonly occurs via loud music delivered via personal listening devices, at sporting or other recreational events, and at jobs that involve lawn-mowing, use of power tools, or construction services.â

For workplace noise exposure, âwe are not doing a very good job achieving correct and consistent use of hearing protection devices (HPD), including both ear plugs and ear muffs,â she said.

âIn the United States, it is relatively uncommon for music venues to provide ear plugs at no charge,â Le Prell said. Even if they were provided, people may need to be educated in why using them is important and in how to use them correctly, she said.

âAs a neurotologist, it really is upsetting to see these kids coming in younger and younger with a completely preventable hearing loss,â Derebery said.

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World Radio Day on 13 February brings attention to the role of radio in managing disasters and recovery in their aftermath.

Radio is recognized as a low-cost medium, specifically suited to reach remote communities and is especially effective in reaching people affected by disasters when other means of communication are disrupted. Terrestrial radio broadcasts are effective in providing timely, relevant and practical information to people who are confused and demoralised by the impact of a crisis. Broadcast information is particularly useful in situations where physical access is difficult and aid responders may take several days or weeks to reach affected communities.

Recent natural and man-made disasters are a major cause for concern to the global community. âIn times of crisis and emergency, radio can be a lifeline,â said United Nations Secretary-General Ban Ki-moon. âFor people in shattered societies, or caught in catastrophe, or desperately seeking news, radio brings lifesaving information. This year, as we start carrying out the Sustainable Development Goals, let us resolve to use radio for human progress. On this World Radio Day, let us resolve to prove that radio saves lives.â

âRadiocommunication is indispensable in saving lives in the event of a natural disaster,â said ITU Secretary-General Houlin Zhao. âCollaborating and sharing experiences is critical in order to support national and regional preparedness, and ITU is deeply committed to facilitating rapid and effective response in emergencies.â

âAmidst the ruins and in the face of an emergency, the radio is often the first medium for survival,â says Irina Bokova, Director-General of UNESCO. âIts durability is an incomparable advantage, often enabling it to resist shocks and re-transmit messages of protection and prevention to as many people as possible, better and faster than other media, saving lives.â

New developments in radio technology and in the transmission and delivery of radio content, especially through mobile devices and through on-demand media platforms, further extend the means to engage disaster-affected communities. These digital innovations are increasingly important in delivering effective disaster preparedness and prevention, while reinforcing the importance of community radio services.

ITU has developed a number of standards for effective emergency radiocommunications, recognizing that direct communication via radio helps reduce the sense of isolation and helplessness experienced by crisis-affected communities. Recommendation ITU-R BT.1774-2 is the standard that relates to emergency warning systems for analogue broadcasting, which facilitates the use of satellite and terrestrial broadcast infrastructures for public warning, disaster mitigation and relief.

In addition, the 2015 ITU World Radiocommunication Conference (WRC-15) identified spectrum to facilitate mobile broadband communications for robust and reliable mission-critical emergency services in public protection and disaster relief (PPDR), such as police, fire, ambulances and disaster response teams. WRC-15 also reinforced protection to search and rescue beacons to uplink to satellites, such as the Cospas-Sarsat system, which has assisted in rescuing over 37,000 people worldwide since December 2013.

World Radio Day marks the anniversary of the first broadcast by UN Radio in 1946, when it transmitted its first call sign: âThis is the United Nations calling the peoples of the world.â Ever since, UN Radio broadcasts have highlighted the principles of the United Nations to foster world peace and development. World Radio Day seeks to raise awareness about the importance of radio, facilitate access to information through radio, and enhance networking among broadcasters.

Bluetooth technology has been designed for many different purposes and situations. Consequently, when people want to buy a bluetooth ear piece for a specific situation, there are some things that they will need to consider. Specifically, based on their specific situation and circumstances, they will need to review the best style of bluetooth earpiece that is available on the market today. Since there are different styles that have been made for for one or more reasons, it’s important for each individual to do their research to see which style can accommodate their needs. It is also important to note that the kind the person purchases must be comfortable so that they can wear them for an extended period of time and they fit the devices that they will be used for. Listed below are three of the bluetooth styles thatâs currently offered by manufactures all over the United States and abroad.

Bluetooth ear pieces for Mobile Phones

Most people take their mobile phones wherever they go. To work, school, church, parties and all kinds of other events that they may attend. Because these phones have become commonplace in many environments, people have a need to handle them and talk to others when their hands are free. This is also a great reason for individuals who work in certain settings to make sure that they are buying the right style that will best fit their needs.

One specific style that some people may choose is the ear cradle style of headphone. In fact, this kind of bluetooth earpiece is idea for people who want to spend their time working out and performing all kinds of other extracurricular activities. People are also encouraged to buy this kind of style because they may be driving when they receive a telephone call from a family member. Or, they may be working at the job typing a memo or walking around taking care of wide hosts of other kinds of activities that are not conducive to holding a mobile phone by hand to the ear. Whatever the situation, this style of bluetooth earpiece technology is great for many different situations and purposes.

Bluetooth ear pieces and Headsets for Music Lovers

In addition to the cradle style for mobile phones, people should also review other styles as well. One specific style that is also functional in many different settings is the DJ over the head headphones. This style has been designed for the serious music lovers, especially those who can appreciate making distinctions in sounds and beats that come from specific musical instruments like the bass, violin, trumpet and other popular instruments. For those who like and prefer this kind, they will also find that this is one of the best styles for keeping out outside noises that normally interfere with a personâs overall entertainment experience. Also, because they are wireless, they are great for people who like to stay mobile during the day instead of remaining in a sedentary position.

Bluetooth Ear Pieces for IPODs

In some situations, people may want to use bluetooth technology with their IPODs. Therefore, they should consider buying an additional popular style bluetooth earpiece technology. This style is known to be very popular, specifically because it is similar to an actual earbud. An ear bud is also another excellent choice for people who want to remain both active and hassle free. Though this is a great choice for people who like to remain mobile in a wide variety of different situations, one of its main draw backs is that they tend to fall out of the individuals ear. Which means, they can also be lost since it lacks additional support to keep them stabilized inside the ear.

Sepura are masters of the tetra market, they have produced radios for many years for theÂ emergencyÂ services. police and airport security, a forward runner for the digital systems we now see all around the UK. The SC20 is the new generation of Sepura radios ready for the modern day work force.Â We found this article on this website and thought that our readers would find it useful.

First orders of Sepura’s new flagship hand-portable radios, the SC20 series, will be shipped in February.

Shaped by user feedback, SC20 series hand-portable radios are resilient, intelligent and durable, providing intuitive operation and outstanding performance, even in the toughest conditions.

Broadband-ready, the SC2020 (380MHz-430MHz) and the SC2040 (403MHz-470MHz) combine the mission-critical security and advanced performance of TETRA with an optional second high-speed data bearer capability.

A new, powerful Class 3 TETRA engine is paired with a new receiver that surpasses the ETSI specification, a unique combination, extending operational range and stretching coverage into areas where it was not possible before.

The radios’ powerful 2W audio capability, enhanced by unique water-porting technology, allows for uncompromised audio clarity, even in continuous heavy rain. Uniquely, the SC20 series boasts IP66, 67 and 68 environmental protection rating, meaning that it is completely dustproof, submersible to a depth of two metres for one hour and impervious to jets of water. Its design also enables it to be easily cleaned by simply rinsing dust and dirt off under the tap.

Additionally, the radios’ high-resolution screen, the largest on the market today, is specifically designed to provide a richer user experience. The larger screen enables the display of more comprehensive data, suitable for future applications via high-speed data; it is also viewable in all light conditions, including direct sunlight.

“The SC20 has been designed to deliver the highest levels of robustness, endurance, audio clarity and power. It is designed to place and receive calls where it simply was not possible before,” commented Mark Barnby, Sepura’s head of product management – devices.

“This is the first product on our brand new technology platform. It is designed to meet the needs of mission-critical users today, whilst allowing high-speed data to be added in the future.”

Steve Barber, VP group strategy for Sepura, commented: “The SC20 confirms our vision for the future and demonstrates our ability to adapt to the fast-moving markets in which we operate.

“We continue to provide our global customer base with products that address their ever-evolving communication needs and the operational challenges they face every day. The SC20 provides undisputable proof that Sepura is going further in critical communications.”